Portable vacuum pump



FIG. 1 is a perspective view of a portable vacuum pump in accordancewith my design;

FIG. 2 is a front side view of the portable vacuum pump in accordancewith my design;

FIG. 3 is a rear side view of the portable vacuum pump in accordancewith my design;

FIG. 4 is a left side view of the portable vacuum pump in accordancewith my design;

FIG. 5 is a right side view of the portable vacuum pump in accordancewith my design;

FIG. 6 is a top plan view of the portable vacuum pump in accordance withmy design; and,

FIG. 7 is a bottom plan view of the portable vacuum pump in accordancewith my design.

The broken lines showing structural features are for illustrativepurposes only and form no part of the claimed design.

CLAIM The ornamental design for a portable vacuum pump, as shown anddescribed.